If you ask me the Monkey Woman was lame from the get go.

You only know that Vader and Anakin are the same guy if you have seen the prequels. They talk about Anakin Skywalker as if he's a different person still.

Original Scene:

Darth Vader: What is thy bidding my master

Emperor: There is a great disturbance in the Force.

Darth Vader: I have felt it.

Darth Vader: We have a new enemy. Luke Skywalker.

Darth Vader: Yes, my master.

Emperor: He could destroy us.

Darth Vader: He's just a boy, Obi-Wan can no longer help him.

Emperor: The Force is strong with him. The son of Skywalker must not become a Jedi.

Darth Vader: If he could be turned, he would become a powerful ally.

Emperor: Yes.... Yes. He would be a great asset. Can it be done?

Darth Vader: He will join us or die Master. New Special Edition 2004 scene:
Darth Vader: What is thy bidding, my master?

Emperor: There is a great disturbance in the Force.

Darth Vader: I have felt it.

Emperor: We have a new enemy. The young rebel who destroyed the Death Star. I have no doubt, this boy is the offspring of Anakin Skywalker.

Darth Vader: How is that possible?

Emperor: Search your feelings Lord Vader, you will know it to be true. He could destroy us.

Darth Vader: He's just a boy, Obi-Wan can no longer help him.

Emperor: The Force is strong with him. The son of Skywalker must not become a Jedi.

Darth Vader: If he could be turned, he would become a powerful ally.

Emperor: Yes.... Yes. He would be a great asset. Can it be done?

Darth Vader: He will join us or die Master.